LNMP架设动态网站

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1.安装nginx

1)使用Nginx官方的yum源

[root@localhost ~]# vim /etc/yum.repos.d/nginx.repo 
[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/centos/7/$basearch/
gpgcheck=0
enabled=1

2)安装Nginx

[root@localhost ~]# yum install nginx -y
[root@localhost ~]# systemctl start nginx
[root@localhost ~]# systemctl enable nginx

2.使用第三方源安装php7.2

1)移除旧版php

[root@localhost ~]# yum list installed | grep php
[root@localhost ~]# yum remove php*

2)安装php源

[root@localhost ~]# yum install epel-release -y
[root@localhost ~]# yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm -y

3)安装php-fpm

[root@localhost ~]# yum install php72w-fpm -y

4)安装php的扩展

[root@localhost ~]# yum -y install  php72w-cli php72w-common php72w-devel php72w-embedded php72w-gd php72w-mbstring php72w-pdo php72w-xml php72w-pear php72w-devel

其他的扩展如下,按照自己的需求安装

php72w-cli 
php72w-common 
php72w-devel 
php72w-embedded 
php72w-fpm 
php72w-gd 
php72w-mbstring 
php72w-mysqlnd 
php72w-opcache 
php72w-pdo 
php72w-xml 
php72w 
php72w-bcmath 
php72w-dba 
php72w-enchant 
php72w-imap 
php72w-interbase
php72w-intl 
php72w-ldap 
php72w-mcrypt 
php72w-odbc 
php72w-pdo_dblib 
php72w-pear 
php72w-pecl-apcu 
php72w-pecl-imagick 
php72w-pecl-xdebug 
php72w-pgsql 
php72w-phpdbg 
php72w-process 
php72w-pspell 
php72w-recode 
php72w-snmp 
php72w-soap 
php72w-tidy 
php72w-xmlrpc 
php72w-pecl-igbinary 
php72w-intl 
php72w-memcached 
php72w-pecl-mongodb

5)查看是否成功安装

[root@localhost ~]# php -v #查看是否成功安装
[root@localhost ~]# php -m #查看所有的扩展

6)配置文件所在的位置

php.ini                   /etc/php.ini
phpize                   /usr/bin/phpize
php-config             /usr/bin/php-config
php-fpm.conf         /etc/php-fpm.conf
php-fpm.pid           /var/run/php-fpm/php-fpm.pid

7)启动php-fpm  

[root@localhost ~]# systemctl start php-fpm
[root@localhost ~]# systemctl enable php-fpm

3.安装MariaDB

1)使用MariaDB官方的yum源

[root@localhost ~]# vim /etc/yum.repos.d/mariadb.repo
[mariadb]
name = MariaDB
baseurl = http://yum.mariadb.org/10.4.0/centos74-aarch64/ #这个链接换成你要的版本地址
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
gpgcheck=1

2)安装并启动MariaDB

[root@localhost ~]# yum install mariadb-server -y
[root@localhost ~]# systemctl start mariadb
[root@localhost ~]# systemctl enable mariadb

4.配置LNMP架构

1)配置Nginx实现动态请求转发至php

[root@localhost ~]# vim /etc/nginx/conf.d/php.conf 
server {
listen 80;
server_name default_server;
root /usr/share/nginx/html;
index index.php index.html;

location ~ .php$ {
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME /soft/code$fastcgi_script_name;
include fastcgi_params;
}
}

2)添加php测试页面

测试phpinfo

[root@nginx ~]# cat /usr/share/nginx/html/info.php
<?php
phpinfo();
?>

使用mysqli模块测试连接mysql

[root@nginx ~]# cat /usr/share/nginx/html/mysqli.php
<?php
$servername = "localhost";
$username = "root";
$password = "";

// 创建连接
$conn = mysqli_connect($servername, $username, $password);

// 检测连接
if (!$conn) {
die("Connection failed: " . mysqli_connect_error());
}
echo "连接成功";
?>

使用pdo模块测试连接mysql

[root@nginx ~]# cat /usr/share/nginx/html/mysqlpdo.php
<?php
$servername = "localhost";
$username = "root";
$password = "";

try {
$conn = new PDO("mysql:host=$servername;dbname=test", $username, $password);
echo "连接成功";
}
catch(PDOException $e)
{
echo $e->getMessage();
}
?>

5.PHP配置文件优化

1)php-ini优化

//打开php的安全模式,控制php执行危险函数, 默认是Off,改为On
sql.safe_mode = Off
//关闭php头部信息, 隐藏版本号, 默认是On,该为Off
expose_php = On
//错误信息输出控制
display_error = Off
error_reporting = E_WARNING & E_ERROR
//记录错误日志至后台, 方便追溯
log_errors = On
error_log = /var/log/php_error.log
//每个脚本时间最大内存
memory_limit = 128M
//上传文件最大许可,默认2M, 建议调整为16,32M
upload_max_filesize = 2M
//禁止远程执行phpshell,默认On, 建议Off
allow_url_fopen = On
//时区调整,默认PRC, 建议调整为Asia/Shanghai
date.timezone = PRC


//整体优化后配置文件
sql.safe_mode = Off
expose_php = Off
display_error = Off
error_reporting = E_WARNING & E_ERROR
log_errors = On
error_log = /var/log/php_error.log
upload_max_filesize = 50M
allow_url_fopen = Off
date.timezone = Asia/Shanghai

2)php-fpm优化
PHP-FPM配置文件 4核16G、8核16G

[root@localhost ~]# cat /etc/php-fpm.d/www.conf
[global]
pid = /var/run/php-fpm.pid
#php-fpm程序错误日志
error_log = /var/log/php/php-fpm.log
log_level = warning
rlimit_files = 655350
events.mechanism = epoll

[www]
user = nginx
group = nginx
listen = 127.0.0.1:9000
listen.owner = www
listen.group = www
listen.mode = 0660

listen.allowed_clients = 127.0.0.1
pm = dynamic
pm.max_children = 512
pm.start_servers = 10
pm.min_spare_servers = 10
pm.max_spare_servers = 30
pm.process_idle_timeout = 15s;

pm.max_requests = 2048

#php-www模块错误日志
php_flag[display_errors] = off
php_admin_value[error_log] = /var/log/php/php-www.log
php_admin_flag[log_errors] = on

#php慢查询日志
request_slowlog_timeout = 5s
slowlog = /var/log/php/php-slow.log
PHP5-FPM配置详解释

[global]
#pid设置, 记录程序启动后pid
pid = /var/run/php-fpm.pid
#php-fpm程序启动错误日志路径
error_log = /soft/log/php/php-fpm_error.log
# 错误级别. 可用级别为: alert(必须立即处理),error(错误情况), warning(警告情况), notice(一般重要信息), debug(调试信息). 默认: notice.
log_level = warning
#设置文件打开描述符的rlimit限制.
rlimit_files = 65535
events.mechanism = epoll

#启动进程的用户和组
[www]
user = www
group = www

# fpm监听端口
listen = 127.0.0.1:9000
# unix socket设置选项,如果使用tcp方式访问,这里注释即可。
listen.owner = www
listen.group = www
# 允许访问FastCGI进程的IP,any不限制
listen.allowed_clients = 127.0.0.1

# pm设置动态调度
pm = dynamic
# 同一时刻最大的php-fpm子进程数量
pm.max_children = 200
# 动态方式下的起始php-fpm进程数量
pm.start_servers = 20
# 动态方式下服务器空闲时最小php-fpm进程数量
pm.min_spare_servers = 10
# 动态方式下服务器空闲时最大php-fpm进程数量
pm.max_spare_servers = 30
# 最大请求
pm.max_requests = 1024
pm.process_idle_timeout = 15s;

# FPM状态页面,用于监控php-fpm状态使用
pm.status_path = /status
# 错误日志
php_flag[display_errors] = off
php_admin_value[error_log] = /soft/log/php/php-www_error.log
php_admin_flag[log_errors] = on

# 配置php慢查询, 以及慢查询记录日志位置
request_slowlog_timeout = 5s
slowlog = /soft/log/php/php-slow.log

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